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Calculate the osmotic pressure( in atm) of each of the following aqueous solutions at 20.00 degree C:
a. 1.59 M methanol (CH3OH)
b. 8.31 mM MgCl2
c. 49.0 mL of glycerol (C3H8O3) in 250.0 mL of aqueous solution (density of glycerol = 1.265 g/mL)
d. 15.2 g of CaCl2 in 350 mL of solution
which is the stronger acid HCL or HBR and which is the stronger base Cl or Br?
An unknown compound contains only carbon, hydrogen, and oxygen. Combustion of 4.00 g of this compound produced 5.87 g of carbon dioxide and 2.40 g of water.
How many grams of Cu(OH)2 can be produced from the reaction of 0.500g Cu with 30.0 mL of 3.0M NaOH? what is the limiting reagent?
What is the pH of 270.0 mL of an aqueous solution containing 0.525 g of the strong acid trifluoromethane sulfonic acid (CF3SO3H)?
methanol, CH3OH can be produced through the reaction of CO and H2. if 75.o grams of CO is used and the typical yield is 79.8%, what mass of methanol is likely to be produced.
You have 47.2 mL of a solution of copper(II) chloride (CuCl2?). You need to determine the concentration of Cu2+ in the solution gravimetrically.
When hydrochloric acid comes in contact with potassium permanganate, what dangerous chemical is released?
Toluene (C6H5CH3) is a liquid compound similar to benzene (C6H6). Calculate the mole fraction of toluene in the solution that contains 132 g toluene and 115 g benzene.
a piece of metal with a mass of147g is placed in a 50ml graduated cylinder. the water level rises from 20ml to 41ml. what density of the metal?
Given that a sample of air is made up of nitrogen, oxygen and argon in the mole fractions 78% N2, 21% O2 and 1.0% Ar, what is the density of air at sandard temperature and pressure?
Calculate the equilibrium constant K for the isomerization of glucose-1-phosphate to fructose-6-phosphate at 298K .
A sample of gas with an initial volume of 33.0 L at a pressure of 765 mmHg and a temperature of 325 K is compressed to a volume of 16.2 L and warmed to a temperature of 440 K. What is the final pressure of the gas?
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